TY - JOUR AU - Szabó, Márton AU - SENDI, HEMEN AU - Ősi, Attila TI - A new species of the vitismin cockroach genus Perspicuus Koubová, 2020 from the Late Cretaceous (Santonian) of Hungary JF - ZOOTAXA J2 - ZOOTAXA VL - 5437 PY - 2024 IS - 1 SP - 105 EP - 114 PG - 10 SN - 1175-5326 DO - 10.11646/zootaxa.5437.1.6 UR - https://m2.mtmt.hu/api/publication/34789391 ID - 34789391 N1 - Export Date: 22 April 2024 AB - Mesozoic amber cockroaches are rare compared to sedimentary imprints and are only known from Myanmar, Lebanon, France, Russia and USA. Perspicuus csincsii sp. n. from the Late Cretaceous (Santonian) ajkaite amber of Hungary with very long cerci, cup-like terminal palpomere of the maxillary palp and fully carinated legs, is clearly distinguished from all other Vitisminae species by the unique, black forewing with small light-coloured dots/stripes and the absence of pubescence on the wings (autapomorphies). The second cockroach described from the ajkaite adds important data to the distribution pattern of Vitisminae during the Late Cretaceous and further highlights the similarity of the ajkaite and burmite biotas. LA - English DB - MTMT ER - TY - JOUR AU - Gere, Kinga AU - Nagy, András Lajos AU - Scheyer, Torsten M. AU - Werneburg, Ingmar AU - Ősi, Attila TI - Complex dental wear analysis reveals dietary shift in Triassic placodonts (Sauropsida, Sauropterygia) JF - SWISS JOURNAL OF PALAEONTOLOGY J2 - SWISS J PALAEON VL - 143 PY - 2024 IS - 1 SN - 1664-2376 DO - 10.1186/s13358-024-00304-x UR - https://m2.mtmt.hu/api/publication/34577416 ID - 34577416 N1 - Funding Agency and Grant Number: Eotvos Lorand University; MTA ELTE Lenduelet Dinosaur Research Group [95102]; Hungarian National Research, Development and Innovation Office [NKFIH K 116665, K 131597]; Swiss National Science Foundation [31003A_179401]; Deutsche Forschungsgemeinschaft (DFG) [WE5440/6-1] Funding text: Open access funding provided by Eotvos Lorand University. Research was supported by the MTA ELTE Lenduelet Dinosaur Research Group (Grant no. 95102) and the Hungarian National Research, Development and Innovation Office (NKFIH K 116665, K 131597). T.M.S. acknowledges support by the Swiss National Science Foundation (grant no. 31003A_179401) and I.W. by the Deutsche Forschungsgemeinschaft (DFG-grant WE5440/6-1). AB - Placodonts were durophagous reptiles of the Triassic seas with robust skulls, jaws, and enlarged, flat, pebble-like teeth. During their evolution, they underwent gradual craniodental changes from the Early Anisian to the Rhaetian, such as a reduction in the number of teeth, an increase in the size of the posterior palatal teeth, an elongation of the premaxilla/rostrum, and a widening of the temporal region. These changes are presumably related to changes in dietary habits, which, we hypothesise, are due to changes in the type and quality of food they consumed. In the present study, the dental wear pattern of a total of nine European Middle to Late Triassic placodont species were investigated using 2D and 3D microwear analyses to demonstrate whether there could have been a dietary shift or grouping among the different species and, whether the possible changes could be correlated with environmental changes affecting their habitats. The 3D analysis shows overlap between species with high variance between values and there is no distinct separation. The 2D analysis has distinguished two main groups. The first is characterised by low number of wear features and high percentage of large pits. The other group have a high feature number, but low percentage of small pits. The 2D analysis showed a correlation between the wear data and the size of the enlarged posterior crushing teeth. Teeth with larger sizes showed less wear feature (with higher pit ratio) but larger individual features. In contrast, the dental wear facet of smaller crushing teeth shows more but smaller wear features (with higher scratch number). This observation may be related to the size of the food consumed, i.e., the wider the crown, the larger food it could crush, producing larger features. Comparison with marine mammals suggests that the dietary preference of Placochelys , Psephoderma and Paraplacodus was not exclusively hard, thick-shelled food. They may have had a more mixed diet, similar to that of modern sea otters. The diet of Henodus may have included plant food, similar to the modern herbivore marine mammals and lizards. LA - English DB - MTMT ER - TY - JOUR AU - Magyar, János AU - Csiki-Sava, Zoltán AU - Ősi, Attila AU - Augustin, Felix J. AU - Botfalvai, Gábor TI - Rhabdodontid (Dinosauria, Ornithopoda) diversity suggested by the first documented occurrence of associated cranial and postcranial material at Vălioara (uppermost Cretaceous Densuș-Ciula Formation, Hațeg Basin, Romania) JF - CRETACEOUS RESEARCH J2 - CRETACEOUS RES VL - 156 PY - 2024 SN - 0195-6671 DO - 10.1016/j.cretres.2023.105810 UR - https://m2.mtmt.hu/api/publication/34472680 ID - 34472680 N1 - Export Date: 23 January 2024 Correspondence Address: Csiki-Sava, Z.; Department of Geology, 1 Nicolae Bălcescu Avenue, Romania; email: zoltan.csiki@g.unibuc.ro Correspondence Address: Magyar, J.; ELTE Eötvös Loránd University, Pázmány Péter sétány 1/C, Hungary; email: magyar.janos@ttk.elte.hu LA - English DB - MTMT ER - TY - JOUR AU - Novák, János AU - Harvey, Mark S. AU - Szabó, Márton AU - Hammel, Jörg U. AU - Harms, Danilo AU - Kotthoff, Ulrich AU - Hörweg, Christoph AU - Brazidec, Manuel AU - Ősi, Attila TI - A new Mesozoic record of the pseudoscorpion family Garypinidae from Upper Cretaceous (Santonian) Ajkaite amber, Ajka area, Hungary JF - CRETACEOUS RESEARCH J2 - CRETACEOUS RES VL - 153 PY - 2024 SN - 0195-6671 DO - 10.1016/j.cretres.2023.105709 UR - https://m2.mtmt.hu/api/publication/34140739 ID - 34140739 N1 - Funding Agency and Grant Number: MTA-ELTE Lendulet Dinosaur Research Group [95102]; National Research, Development and Innovation Office [NKFIH K 116665, K 131597, PD 130190, FK 130627]; German Research Foundation (DFG) [HA 8785/5-1, KO 3944/10-1] Funding text: Dr. Jason A. Dunlop and an anonymous reviewer are thanked for their constructive suggestions and comments, by which they highly improved an earlier version of the manuscript. Special thanks belong to Constantin Mey for his help in refining the 3D Synchrotron model. We thank the Department of Palaeontology and the Department of Systematic Zoology and Ecology of the Eotvos Lorand University, to Dr. Klara Dozsa-Farkas, the Plant Protection Institute of Centre for Agricultural Research (with the technical assistance of Dr. Jen}o Kontschan) and the Natural History Museum Vienna for the support during light microscope investigations and photography of the amber stone specimen. This research was supported by the MTA-ELTE Lendulet Dinosaur Research Group (Grant No. 95102), National Research, Development and Innovation Office (NKFIH K 116665, K 131597, PD 130190, FK 130627). The authors acknowledge the DESY (Hamburg, Germany), a member of the Helmholtz Association HGF, for the provision of experimental facilities. Beamtime was allocated for proposal I-20190010. Danilo Harms and Ulrich Kotthoff thank the German Research Foundation (DFG) for financial support (HA 8785/5-1 and KO 3944/10-1). LA - English DB - MTMT ER - TY - CONF AU - Magyar, János AU - Csiki-Sava, Z.* AU - Augustin, F.J. AU - Ősi, Attila AU - Botfalvai, Gábor TI - Got the Head and Tail of It? – New ornithopod dinosaur fossils from Vălioara represent the most complete rhabdodontid skeletal association from the Densuș-Ciula Formation (Hațeg Basin) T2 - Abstract Book, Fourteenth Romanian Symposium on Palaeontology PB - Bucharest University Press C1 - Bucharest PY - 2023 SP - 73 EP - 74 PG - 2 UR - https://m2.mtmt.hu/api/publication/34145426 ID - 34145426 LA - English DB - MTMT ER - TY - JOUR AU - Augustin, Felix J. AU - Ősi, Attila AU - Csiki-Sava, Zoltán TI - The Rhabdodontidae (Dinosauria, Ornithischia), an enigmatic dinosaur group endemic to the Late Cretaceous European Archipelago JF - FOSSIL RECORD: AN INTERNATIONAL JOURNAL OF GEOSCIENCE J2 - FOSS REC VL - 26 PY - 2023 IS - 2 SP - 171 EP - 189 PG - 19 SN - 2193-0066 DO - 10.3897/fr.26.108967 UR - https://m2.mtmt.hu/api/publication/34128741 ID - 34128741 N1 - Department of Geosciences, University of Tübingen, Hölderlinstraße 12, Tübingen, 72074, Germany Department of Palaeontology, Institute of Geography and Earth Sciences, ELTE Eötvös Loránd University, Pázmány Péter Sétány 1/C, Budapest, 1117, Hungary Hungarian Natural History Museum, Baross u. 13, Budapest, 1088, Hungary Faculty of Geology and Geophysics, University of Bucharest, 1 Nicolae Bălcescu Avenue, Bucharest, 010041, Romania Export Date: 10 November 2023 Correspondence Address: Augustin, F.J.; Department of Geosciences, Hölderlinstraße 12, Germany; email: felix.augustin@uni-tuebingen.de AB - The Rhabdodontidae was one of the most important dinosaur groups inhabiting the Late Cretaceous European Archipelago. Currently, the clade comprises nine species within six genera, which have been found in southern France, northern Spain, eastern Austria, western Hungary and western Romania, ranging from the Santonian to the late Maastrichtian. Phylogenetic analyses consistently place the Rhabdodontidae at the very base of the iguanodontian radiation, whereas the in-group relationships of rhabdodontids are relatively poorly understood; nevertheless, the clade seems to have had a rather complicated biogeographical history. Generally, rhabdodontids were small- to medium-sized, probably habitually bipedal herbivores, characterised by a rather stocky build and a comparatively large, triangular skull. Several lines of evidence suggest that they were presumably gregarious animals, as well as selective browsers that fed on fibrous plants and occupied different ecological niches than sympatric herbivorous dinosaur clades. Moreover, the sympatry of at least two rhabdodontid taxa was rather common and can be explained, at least in some instances, by niche partitioning. While rhabdodontids disappeared prior to the K/Pg extinction event in Western Europe, they survived close to the end of the Cretaceous in Eastern Europe, where they were amongst the last non-avian dinosaurs still present before the end of the Cretaceous. In this paper, we provide an overview of the rhabdodontid taxonomic history, diversity, phylogenetic relationships and palaeobiogeographic history, as well as palaeoecology and extinction. In addition, we also highlight still open questions on each of these topics and suggest potential future research directions. LA - English DB - MTMT ER - TY - JOUR AU - Szabó, Márton AU - Szabó, Péter AU - Kóbor, Péter AU - Ősi, Attila TI - Alienopterix santonicus sp. n., a metallic cockroach from the Late Cretaceous ajkaite amber (Bakony Mts, western Hungary) documents Alienopteridae within the Mesozoic Laurasia JF - BIOLOGIA (BRATISLAVA) J2 - BIOLOGIA VL - 78 PY - 2023 IS - 6 SP - 1701 EP - 1712 PG - 12 SN - 0006-3088 DO - 10.1007/s11756-022-01265-7 UR - https://m2.mtmt.hu/api/publication/33538471 ID - 33538471 N1 - Export Date: 3 January 2023 Correspondence Address: Szabó, M.; Department of Paleontology and Geology, Ludovika Tér 2, Hungary; email: szaboomaarton@ttk.elte.hu AB - Cockroaches (Blattaria s. str.) were documented from numerous amber localities around the world, representing both extinct and extant families. Alienopteridae is an extinct cockroach family known only from the Cretaceous of Gondwana (Brazil, Botswana, Myanmar amber) and the Cenozoic of North America. Alienopterix santonicus sp. n. from the Late Cretaceous amber of the Ajka Coal Formation (Bakony Mts, western Hungary) extends the rich geographical distribution of the family into Laurasia during the Mesozoic. As a member of the presumably pollinator cohort Alienopteridae, this species could have played an important role in the Ajka Coal ecosystem during the Santonian. The microrectangular structures of the forewing suggest that the new species likely possessed a metallic colouration already known from the group. Combined with the disruptive body pattern this could have served as an advanced camouflage. The microrectangular structures of the forewing were compared to integument microstructures of extant insects with metallic colouration. Various arthropod taxa are already known from ajkaite, and the new discovery further emphasizes the importance of this amber. LA - English DB - MTMT ER - TY - JOUR AU - Ősi, Attila AU - Barrett, Paul M. AU - Evans, Alistair R. AU - Nagy, András Lajos AU - Szenti, Imre AU - Kukovecz, Ákos AU - Magyar, János AU - Segesdi, Martin AU - Gere, Kinga AU - Jó, Viviána TI - Multi-proxy dentition analyses reveal niche partitioning between sympatric herbivorous dinosaurs JF - SCIENTIFIC REPORTS J2 - SCI REP VL - 12 PY - 2022 IS - 1 PG - 16 SN - 2045-2322 DO - 10.1038/s41598-022-24816-z UR - https://m2.mtmt.hu/api/publication/33295571 ID - 33295571 N1 - Department of Palaeontology, Institute of Geography and Earth Sciences, ELTE Eötvös Loránd University, Pázmány Péter Sétány 1/C, Budapest, 1117, Hungary Hungarian Natural History Museum, Baross u. 13, Budapest, 1088, Hungary Natural History Museum, London, SW7 5BD, United Kingdom Monash University, Wellington Rd, Clayton, VIC 3800, Australia Department of Propulsion Technology HU, Széchenyi István University, Egyetem tér 1, Győr, 9026, Hungary Department of Applied and Environmental Chemistry, Interdisciplinary Centre of Excellence, University of Szeged, Rerrich Béla tér 1, Szeged, 6720, Hungary Department of Physical Geography, Institute of Geography and Earth Sciences, ELTE Eötvös Loránd University, Pázmány Péter Sétány 1/C, Budapest, 1117, Hungary Export Date: 13 December 2022 Correspondence Address: Ősi, A.; Department of Palaeontology, Pázmány Péter Sétány 1/C, Hungary; email: osi.attila@ttk.elte.hu AB - Dentitions of the sympatric herbivorous dinosaurs Hungarosaurus (Ankylosauria, Nodosauridae) and Mochlodon (Ornithopoda, Rhabdodontidae) (Santonian, Hungary) were analysed to investigate their dietary ecology, using several complementary methods—orientation patch count, tooth replacement rate, macrowear, tooth wear rate, traditional microwear, and dental microwear texture analysis (DMTA). Tooth formation time is similar in Hungarosaurus and Mochlodon , and traditional and DMTA microwear features suggest low-browsing habits for both taxa, consistent with their inferred stances and body sizes. However, Mochlodon possesses a novel adaptation for increasing dental durability: the dentine on the working side of the crown is double the thickness of that on the balancing side. Moreover, crown morphology, enamel thickness, macrowear orientation, and wear rate differ greatly between the two taxa. Consequently, these sympatric herbivores probably exploited plants of different toughness, implying dietary selectivity and niche partitioning. Hungarosaurus is inferred to have eaten softer vegetation, whereas Mochlodon likely fed on tougher material. Compared to the much heavier, quadrupedal Hungarosaurus , the bipedal Mochlodon wore down more than twice as much of its crown volume during the functional life of the tooth. This heavy tooth wear might correlate with more intensive food processing and, in turn, could reflect differences in the metabolic requirements of these animals. LA - English DB - MTMT ER - TY - CONF AU - Ősi, Attila AU - Paul, M. Barrett AU - Alistair, Evans AU - András, Lajos Nagy AU - Szenti, Imre AU - Kukovecz, Ákos AU - Magyar, János AU - Martin, Segesdi AU - Kinga, Gere AU - Viviána, Jó TI - Dietary palaeoecology of sympatric herbivorous dinosaurs revealed by multi-proxy dentition analyses T2 - Programme and Abstracts book of 70th Symposium on Vertebrate Palaeontology and Comparative Anatomy PY - 2022 SP - 22 EP - 23 PG - 2 UR - https://m2.mtmt.hu/api/publication/33206836 ID - 33206836 LA - English DB - MTMT ER - TY - JOUR AU - Szabó, Márton AU - Brazidec, Manuel AU - Perrichot, Vincent AU - Szenti, Imre AU - Kukovecz, Ákos AU - Ősi, Attila TI - A unique record of the Late Cretaceous of East-Central Europe: The first fossil wasps (Hymenoptera: Bethylidae, Spathiopterygidae) from the ajkaite amber (Bakony Mts., western Hungary) JF - CRETACEOUS RESEARCH J2 - CRETACEOUS RES VL - 139 PY - 2022 PG - 11 SN - 0195-6671 DO - 10.1016/j.cretres.2022.105314 UR - https://m2.mtmt.hu/api/publication/33076752 ID - 33076752 N1 - Funding Agency and Grant Number: MTA-ELTE Lendulet Dinosaur Research Group [95102]; Hungarian National Research, Development and Innovation Office [NKFIH K 116665, K 131597, PD 130190, FK 130627, TKP2021-NVA-19] Funding text: The authors are grateful to Eduardo Koutsoukos, Alexandr Rasntisyn and an anonymous reviewer for their constructive comments. We thank the Eotvos Lorand University Paleontological Department and the Hungarian Natural History Museum for their support during preparation of the amber stone specimens and data analysis. The University of Szeged is acknowledged for the assistance in micro-CT scanning. The research was supported by the MTA-ELTE Lendulet Dinosaur Research Group (Grant No. 95102), Hungarian National Research, Development and Innovation Office (NKFIH K 116665, K 131597, PD 130190, FK 130627 and TKP2021-NVA-19). This work is a part of M.B. Ph.D. project on `The role of greenhouses on the diversification and evolution of the chrysidoid wasps'. LA - English DB - MTMT ER -